The official documentation page of cbbackupmgr restore is present here: https://docs.couchbase.com/server/current/backup-restore/cbbackupmgr-restore.html
One of the flags: --enable-bucket-config is not present in the list of options described in the synopsis.
However we do have --disable-bucket-config present in the synopsis and the starting description however it's usage is not reflected in the list of optional flags.
It might be because the intention would have been to not describe the same flag twice, but it'll be better to have the explanation in both places so that the optional flags list is consolidated.
Applicable Screenshots attached.